EF-4

Videos of the Violent EF4 and EF5 Tornadoes on April 27, 2011

April 27, 2011 brought 15 violent tornadoes to the South, including four EF-5s. We've documented their paths and have collected…

13 years ago

Violent F4/EF-4 and F5/EF-5 Tornadoes in the United States since 1950

Combined, violent tornadoes make up a still rather meager 1 percent of all tornadoes, but they caused 64 percent of…

13 years ago